Ccrk-cutting machine



N. C. NIELSEN AND A. ALTHUON.

I CORK CUTTING MACHINE.

APPLICATION FILED FEB. 26, I919.

l,:3,U97O Patented $6111.10 19220.

3 am, JIZ

a specification.

HEELS CHRISTIAN NIELSEN AND ARTHUR ALTHUQN, F COPENHAGEN, DENMAEK.

ecnisourrtne MACHINE.

Specification of Letters Patent. Paibgmfijqggfl J M1) 1922 Application filed February 26, 1919. Serial No. 2793M.

T 0 all whom it may concern:

Be it known that we NIELS CHRISTIAN Ninnsnn and ARTHUR ALTHUON, residing at Copenhagen, Denmark, have invented certain new and useful Improvements in Cork- Cutting Machines, of which the following is This invention relates to cork cutting are chines of the kind comprising a support tor the work-pieces, a reciprocating vrotary punch, a presser foot for holding the work immovable during the cutting operation, and a device for advancing the work-piece the requisite distance each cutting operation. ll i Y The main feature of the invention cornprises-the combinatio of an intermittently movable slide for supporting the worlcpieee,

a presser foot for lipliding the Work immovable during the cutting operation, a reciprocating rotary punch .carried by "a spindle which is axially displaceable in a worm bush and connected therewith by means of a spline and keyway, a worm wheel operated by said worm bush, an eccentric rotatably fe nnected witli said worm wheel and a pivotally mounte arm adapted to be rocked by said eccentric at regular intervals of time, whereby the axial displacement of the punch, the opposed movementof the presser foot as well as the feed motion of the slide, will be effected indefinite succession. l

The invention is illustrated in the accompanying drawings in which: i v

Figure 1 is a side view of the machine, and s,

Figure 2 is a view of the slide, as seen according to a horizontal section lI.-H of Figure 1. I

In carrying the invention into effect, 1 is a vertical frame at the top tarnished with bearings 2 for a shaft 3 with a loose and fast pulley. and at the end a rope pulley t from which a cord 5, running over rollers 6,

transmits the motion to another rope pulley 7 on a vertical bush 9 fitted with a worm 8,

' the bush being so fitted, that it can'turn in bearings 10 on the frame 1. in the bush 9 a spindle- 11 is arranged,-wh1eh by a key 12 is forced to rotate with the bush. The worm 8 operates a worm wheel 13 on a horizontal shaft 142 which'also carries an eccentric 15 the strap of which base rod 16, which at the top by means of a pivot l? operates in a slot 18 in an arm 26 which can turn on a pivot 19. On the pivot 17 a rod is so fitted that it is able to turn, the upper end of the rod being provided with a slot 22, which operates by means of a pivotal connection 23 on an angle lever 25 turning on a pivot 2a, the other end of the angle lever being connected by a short rod 26 with a lower slide 27 moving on the two bearers 30, so that the motion oi the slide, by the lever system described, will be an alternating one. "(in the slide 27 an upper slide 28 is fitted, which can move backwards and forwards crossing the direction in which the lower slide moves.

' This rnotion of the upper slide need not be automatic, but can. be operated by hand by means 0% the handle 29.

V Above the bushing '9, a collar 31 is fitted on the spindle 11, and above this on the spindle a ring 32 is rotatably mounted and is loosely fitted with pivots which are fixed to a ring formedmeinber 57 ofthe arm 20. A spring 47 surrounding the spindle 11 is fitted between the ring 32 and a collar 59 on the spindle 11, above which collar a movable slide 58 is carried by a guide 60.

When the ring 32 is moved upwards by the arm 20, it exercises a pressure upon the spring 4;? whose upper end transfers the pressure to the movable slide 55 which lifts the punch 50. f

The arm 20 through the medium of a rod 34 operates one end of a lever fitted in the upperend of the frame 1 on a pivot 35, the other end of the lever enclosing within its forked end a vertical spindle 37, below a cot lar 38. On this spindle,'which can be moved forward in a bearing 39 in the frame, the presser foot 40 is fitted, guided by a slide 4,1 travelling onvertical guides l2. I in the presser foot is a grinding apparatus consisting of external and internal; grinding tools which in the well known manner grin the punch 50, fitted on the spindle 11.

on the upper slide 28 a fast jaw 43 and a loose jaw 44 are fitted, the latter being mounted on a spring loaded angle lever 45.

When the strip of cork a is advanced, it is held between thesetwo jaws.

' above the one end of the lever 36 respectively.

The machine operates as follows The bushing 9 is rotated by the band 5, thereby causing the spindle 11,,punch '50, and the eccentric 15 to rotate also. rotation. of the'ecccntric 15 will cause the pin 17 to travel up in the slot 18 and the reaches the top of the slot 18, the lever 20 will be turned about the pivot 19, whereupon the punch 50 will move up through the opening 5 in the slides 2728 and cut through the strip of cork, and the lever 34, through the spring 53, will turn the lever 36 and cause the presser foot 40 to descend and come into contact with the strip a.

When the eccentric 15 has completed 180 from the position shown the rod 21 will commence to descend. The lever 20 will also descend by the action of its spring 46, whereby the punch 50 will move downwards and the presser foot 40 will be caused to ascend by the movement of the rod 34 and lever 36. During the first portion of the downward movementof the pin 17, the slide 2728 remains stationary until the punch 5O has been withdrawn from the cork. lVhile the punch is being withdrawn from the cork strip the rod 21 moves down without affecting the lever 25, owin' to the pin and slot connection 22 and 23 etween the rod 21 and lever 25. After the punch has left the strip of cork, the lever '25 is swung by the spring 48 to cause the slide to be moved to the left and perform its feeding stroke. During this stroke, of course, the strip travels with the slide, so that a fresh portion of the strip will be positioned over the hole 5 to be cut by the punch on its next upward stroke.

The slots 18 and 22 allow for a variation between the stroke given by eccentric 15 and the up and down travel of the cutter. on the one hand and the transverse travel of the work carrying slides on the other hand, or'

of the work slide, and the presser foot raised on the downward movement of the cutter before the feed stroke of the slide.

Having now particularly described and The ascertained the nature of our said invention and in what manner the same is to be performed, we declare that what we claim is:

1. A machine for the cutting or making of corks, comprising the combination of an intermittently movable slide for supporting the work-piece a presser foot for holding the work immovable during the cutting operation, a reciprocating rotary punch carried by a spindle which is axially displaceable in a worm bush and connected therewith by means of a spline and keyway, a worm wheel operated by said worm bush, an eccentric rotatably connected with said worm wheel and a pivotally mounted arm adapted to be rocked by said eccentric at regular intervals of time, whereby theaxial displacement {of the punch, the opposed movement offthe presser foot as well as the feed motionfp'fthe slide will be effected in definite succession.

2. A machine for the cutting or making of corks, comprising the combination of an intermittently movable slide'for supporting the work-piece, a presser foot for holding the work immovable during the cutting operation, a reciprocating rotary punch carried by a spindle which is axially displaceable in a worm bush and connected therewith by means of a spline and keyway, a worm-wheel operated by said worm-bush, an eccentric rotatably connected with said worm-wheel, a pivotally mounted arm adapted to be rocked by said eccentric, a connecting rod for transmitting the movement ofthe eccentric to the slide, and longitudinal guide slots provided in said arm and connecting rod whereby the feed of the punch is retarded a length of time required to operate the slide.

3. A machinefor the cutting or making of corks comprising the combination of an intermittently movable slide for supporting the work-piece, a presser foot for holding the work immovable during the cutting operation, a reciprocating rotary punch carried by a spindle, which is axially displaceable in a. worm bush and connected therewith by means of a spline and keyway, a worm wheel operated by said worm bush, an eccentric rotatably connected with said worm wheel, a pivotally mounted arm adapted to be rocked. by said eccentric at regular. intervals of time and means whereby the cork strips are held fast, by the punch and presser foot acting in conjunction, during the return of the slide.

In testimony whereofwe afiix our si tures in presence of two witnesses.

NIELS CHRISTIAN NIELSEN. ARTHUR ALTHUON. Witnesses:

, ARTHUR TORSLEUSPAN.

E. W. ELLsKow. 

